//: C03:OnTheFly.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// On-the-fly variable definitions
#include <iostream>
using namespace std;

int main()
{
    //..
    { // Begin a new scope
        int q = 0; // C requires definitions here
        //..
        // Define at point of use:
        for (int i = 0; i < 100; i++) {
            q++; // q comes from a larger scope
            // Definition at the end of the scope:
            int p = 12;
        }
        int p = 1;  // A different p
    } // End scope containing q & outer p
    cout << "Type characters:" << endl;
    while (char c = cin.get() != 'q') {
        cout << c << " wasn't it" << endl;
        if (char x = c == 'a' || c == 'b')
            cout << "You typed a or b" << endl;
        else
            cout << "You typed " << x << endl;
    }
    cout << "Type A, B, or C" << endl;
    switch (int i = cin.get()) {
    case 'A':
        cout << "Snap" << endl;
        break;
    case 'B':
        cout << "Crackle" << endl;
        break;
    case 'C':
        cout << "Pop" << endl;
        break;
    default:
        cout << "Not A, B or C!" << endl;
    }
} ///:~
